Flushing-cistern.



- G. L. NEWLAND.

FLUSHING GISTBRN.

. APPLICATION FILED snrnze, 1910.

1,132,608, Patented Mar.23,1915.

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A TTOHIYEK THE NORRIS PETERS m" PHOTO-LITHO" WASHINGTON. D. C.

G. L. NEWLAND. FLUSHING GISTERN.

APPLICATION FILED SEPT. 26, 1910.

[ 1,132,608. Patented Mar. 23; 1915.

2 SHEETSSHEBT 2.

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THE NORRIS PETERS 60.. PHOTO-LITHO, WASHINGTON. D4 C nections; Fig. is a detail View of a suit- UNITED STATES 'ArEEE- oEEicE.

' CHARLES LEsLIE NEWLAND, 0F-1VfERTON,-E1\TGLAND.

LUs HInG-cIs'rEEN.

I Specification of Letters2atent. Patented Liar, .1915;

Application filed September 26, 19 10. SeriaLNo. 583,935.

To all whom itmay concern: 4 I Be it known'th'at I, CHARLES LESLIE NEW- LAND, a subject of His Majesty the King of England, residing at Victoria Villa, Caven- I dish Road,-Merton,- in the county of Surrey, Kingdom of England, have invented a certain new and 'useful Improvement in Flushing-Cisterns, of which the following is a specification. 7

My invention relates toflushing cisterns of the kind in which the'cisternis divided by a partition into two water compartments which are adapted to be filled from a common source of supply anddis'Charged through separate discharge conduits. In such previous-arrangements where a single operating lever has been employed it has not been possible to separately discharge at will the water fromthe separate compart merits, the discharge from both being automatic when-the said leverhas been operated.

Now according to my present invention I provide a double or twin cistern of standard construction that is provided with a' common inlet and a common outflow pipe, through which latter the water from one or both of the compartments is adapted to be independently and successively discharged at will upon the repeatedoperation of a single operating device or lever. I

Further features will be herein described in the specification and vpointed out in the claims.

I In the accompanying drawings :-'Figure 1 is a sectional elevation'of a siphonflushing cistern constructed according to my in'-'= venti on; Fig. 2 is a plan of the same, the lid or cover being removed in both these figures; Fig. 3 is a sectional view showing the lost motion connection between the shaft and the operating lever; Fig. 4 is an inverted detail plan view showing such con- I hanger or rocker comprising a pair-of arms d that are mounted on acommon sleeve" d" and providedat each end with a suitable bearlng for engaging pins orstuds e on the plungers 0 c. ihe hangers or rockers are so arranged that they .leavejthe plunger" pins 6 on theplungergnot being operated and they are fiXEd'ilO a suitableshaft or spindle 7' preferably having a limiting stop. On the shaft or spindle f carryingthe hangers or rockers, I place a lever'g for the purpose of operating the hanger by a suitable chain it or the like. The lever g is som'ount ed on-the spindle or shaft -f'th'atit" has'a certain amount of free movement or lost motion which is checked in both directions by a suitable limiting stop on the shaft.

To control the water supply to both the compartments I employ a single valve 21' that is operated bya pair of floats j that are mounted on'the ends of a bell crank lever or rocker arm turning about a pivot Z at the end of the main valve lever m. The

floats'j j are Iadaptedto fioaton the surface of the water one in eachcompa'rtment a (1 thus insur ng a sufiiclent openingo'f the. valve 2' upon the falling 'of the water in either compartment, as not until one cham her is completely filledandthe other quite or almost full is any appreciable or sufficient lifting effect exerted bythe floats on the'valve lever mto close the valve Thus,the supply valve is always fully open while the chamber a 'isbeing filled an arrangement which still further insures the efficiency of the cistern- A two armed member n is mount ed on the shaft f operatively connected with the lever g and its object is to throw the lever g in position for flushingthe water from either of the two compartments which may con tain the water at the time. The movement of this member is brought about by a pin or roller 0 which projects laterally from the arm is and engages one or other of itsextremities according to the position of the floats j j. Thus intheposition shown in Fig. 1 when both compartments a a are supposed to be full the pin 0 in its'upward I movement has by engagement with the up-- 7 per arm of the member nithrown the lever q' over to the left hand side so that when the chain it is pulled the righthandplu'nger'c' will'be first raised to empty the water from the compartment a Whenthis compare ment has beenemptied the float y" will drop and turn about the support formed by the float j and the pin 0 will engage the lower arm of the member n and cause the lever g to be thrown over into its other or right hand position ready for emptying the other compartment a.

The siphoning tubes both discharge into a common well a from which the water is carried off by a common fiow pipe a of ordinary standard size. To completely safeguard against any possible siphoning of one flush by the operation of the-other flush I provide a small air tube 7). that is connected with the well a of the cistern at its back and extends downward within the well for a short distance. Upon the siphons operating, air is drawn in by this tube 79 to take the place of the falling water and prevent the water from being sucked or drawn down by the partial vacuum which would otherwise be created in the flow pipe and well.

If it be assumed that the-two compartments a and a are full of water as shown in Fig. 1, and that the chain it be pulled, the shaft will turn carrying the swinging hanger or rocker (Z with it to elevate the siphon tube 0, but this swinging hanger (Z remains inactive to the siphon tube 0. The water in the compartment a thereupon escapes, causing the float j to drop, the float j acting as a support or turning point for the rocker arm 70. As the float y" drops, the pin 0 is brought into engagement with the cor-- the latter to rock, carrying the shaft 7' with it. The falling float 7" causes a corresponding movement of the main valve lever m to open the valve 2', so that water immediately flows into the water chamber or compartment a and overflows the partition b into the water chamber or compartment a. The falling of the float j, by engagement of the pin 0 with the member a and the consequent rocking of the shaft 7, carries the lever g from overhanging relation to the compartment or chamber a, into corresponding overhanging relation to the compartment or chamber 64 so that the operator may pull thechain h to again rock the shaft 7' and by this rocking ofthe shaft 7 lift the siphon tube or plunger 0 to permit escape of water from the water chamber or compartment a. When water is caused to fiow out of the chamber a the falling float j has by engagement of the pin 0 with the member a caused the positioning of the lever 9 so that a second pull on the chain it will cause the operation of the siphon tube 0 to empty the water chamber a, but if such second operation is not performed, then the rising water in the compartment or chamber a will lift the float j until ultimately the pin 0 is brought into engagement with the other arm of the member a and the lever g is rocked toward its first position, moving by gravity to that position after having passed the vertical, the member a being connected to the lever g to cause the stated movements of the latter.

If both compartments or chambers be emptied of water, the inflow will continue at full force until the chamber a is full and overflows into the chamber a and the latter has reached nearly its full condition before the floats will move the valve lever m sulficiently to cause any cutting off of the inflow, and this cut off is then rapid.

By the present invention there is provided a means whereby one chamber or compartment of the cistern or tank may be emptied of the water therein and this same compartment may be permitted to fill, to be later emptied again, if such be desirable. If, however, a second flush he wanted to immediately follow the first flush, then the operator will find the device in position for causing this second flush, although it requires a distinct and separate actuation of the mechanism by the operator. If this second operation is not brought about, the apparatus assumes its first or normal position by the filling of the emptied compartment. The second compartment or chamber is emptied only at the will of the operator and subsequent to the emptying of the first compartment. Furthermore, if the first compartment to be emptied has not become sutliciently full, after having been emptied, to return the mechanism to its initial position, a second operation will cause the emptying of the second compartment in order, without, however, affecting the'partially filled first compartment.

The two flushing compartments and the rapid filling of the first and also the second compartment makes the cistern more valuably and sanitary than a single flush especially where a cistern is likely to be constantly and frequently used.

In order to be readily able to vary the height of water, I may as shown in Fig. 5 make the float arm in two parts is, it" that are hinged together and held in adjustable angular relationship to each other by means of a screw or stud. a that passes through lugs r 1" formed on the respective parts.

For the purpose of enabling the valve 2' to be arranged on the other side of the cistern 1 form the member n so that it can be removed from the shaft and reversed in position thereon; This is accomplished by making slots .9 in the opposite ends of its boss, one of which engages with the fixed stop on the shaft f previously described and the other with a projection or key t on the side of the boss of the lever see Fig. 4.

It will be obvious that my valve and. rocker bar arrangement may be applied to other than siphon cisterns in which case the rocker arms cl would engage in a similar manner with r the valve member that would take the .placesof thesiphon tubes shownin Y :the drawings.

"level of .water in the said predetermined compartment, and emotive means on the] last-named means and the manipulating .lVhatI claim and desire to secure by ters Patent of the United States ;is

1. A double flushing cistern comprising two separate water compartments, separate discharging means. for the compartments,

manipulating means for the discharging means common to both and normally active toapredetermined one of-said discharging means, means responsive to the'lowering means operative to set the manipulating means on the discharge of water from the predetermined compartment into position to become active to the discharging means of the other compartment for the discharge of the latter at the will of .the operator, whereby the predetermined one ofthe comzpartments is always emptied first and will;

then refill unless the operator again actuates the manipulating means beforetherefilling is completed. 7 p 2. A double flushing cistern comprising tw, 0 separate water compartments having a common outflow and a single inlet, separate discharging means for the compartments, manipulating means for the discharging means common to both and normally set :to be active to a predetermined one" of the discharging means, means responsive to the lowering level of water inthe'said predetermined compartment to control the inlet to the cistern, and coacting means on the manipulating means and on the said means responsive to the lowering level of water operative to set the manipulating means on the discharge of water from the predetermined compartment into position to become active to the other compartmentfor its dis:

charge at the will of the operator.

3. A double flushing cistern comprising two separate water compartments communicating with a common outflow pipe, discharging means'individual to the compartments, a rock shaftcarried byith cistern, connections between the rock shaft and each of the individual discharging means, a' lost motion rock armor lever carried by-the shaft for actuating the latter at;will, con- 1 nicating with a common outflow pipe, controlling means individual tov the compare-i nected floats in the twocompartments, a single inlet valve and connections therefrom to both floats, and means controlled by thefloats for shifting the operating lever or arm into one or the other of two operative positions in accordance with the water level in the cistern.

4. A double flushing cistern "comprising two separate watercompartments commuments for the outflow, a'rock shaft carried ,ing lever to one side or the other of Ta neuy vthe 'j iis e n, v-hianser e ro ker har ed. y the rock sha t and active to i-e thel ah ing m an i n 'vid a to. t e mmi -i roking of th oc shaft, a arm 9 le er carried by the rock shaft 1 and having a lost m o .e e io "t erew t a W member connectedto the rock, arm or lever,

man p at g mea s connected to th we arm ,or ,lever for rocking {the shaft at will, a floa i a hco par e t, eime ilstb tween the floats, and means carried-by said,

last named connections for -engaging the two armed member to move the manipulata p s re p nsetqt l ve of Wa e in the cistern.

5. A double flushing-cistern comprising two separate water compartments communieating with a common; outflow, vSeparate,

means individual to the compartments for 1 discharging said compartments, operating means for said individual discharging means'lmovableto two operative positions, and means responsive to the level of-waterin one' compartment to move thetwo-position.

operating means to one or the other of its operative positions inc-accordance with the,

the manipulating meansand onthe said normally lnactive means responsive to the changing level of water constructed to move the said manipulating means into a position;

with relation to one or the other of the discharging means in accordance with the water level in said compartment, for subsequent manipulation at thewill of the operator.

Z. A double flushing c stern comprising separate water "compartments communicate discharging means for the compartments, a single manipulating means common to the individual discharging means and having, twooperati've-positions,.and a float" and con nections therefromto said operating means,

iingiwitha common outlet pipe, individual 5 said float being located in one of the com:

partments and normally upheld ina position of rest by the water therein and responsive -to.;changing' level of said -Wat8fyf0t '--,mov-ing the manipulating means into an operative position with reference to one or the other of the individual discharging means for subsequent manipulation at the will of the operator.

8. A double flushingcistern comprisingjl' I flushing or may permit the compartment first emptied to again'fill'when a further actuation of the manually controllable means will cause the second emptying of the first compartment without any emptying of the second compartment. 7

9. A double flushing cistern comprising two separate water compartments, discharging means individual to the water compartments, manipulating means common to both discharging means and havinga normal position of rest in operative relation to a predetermined one of the discharging means,

and means responsive to the lowering level of water; in the compartment first d1s-,

charged and related to the manipulating means to move the latter into a second position of rest in operative relation to the discharging means of the other compartment, the manipulating means being constructed to be moved away from its second position of rest in the same'direction as its movement thereto by the means responsive to changing water level, to act operatively upon the second discharging means.

'10. A double flushing cistern comprising two separate water compartments, discharging means individual to said compartments, manipulating means having a normal position of rest in operative relation to a predetermined one of the discharging means, means responsive to the lowering level of water in the compartment first discharged for moving the manipulating means to a position of rest in operative relation to the discharge means of the other compartment, and water inletmeans controlled by the water level responsive means for supplying wa;

ter to the compartments in succession.

11. A double flushing cistern comprising two separate water compartments, discharge means individual thereto, manipulating means common to both discharge-means and having a normal position of rest in operative relation to a predetermined one of the discharge means, means responsive to lowering water level. in the compartment first discharging for moving the actuating means to a position of rest in operative relation to the discharge means of the second compartment, said water level responsive means and the manipulating means having coacting members related to cause the return of the manipulating means to the normal position of rest on the rise ot water in the predetermined compartment to the normal level, and a valved water inlet for the cistern connected to and actuated by the water level responsive means.

12. In a double flushing cistern, two separate water compartments, individual discharging means for said compartments, a water inlet for the cistern, and connected floats, one in each compartment and having a common connection to the water inlet to close the latter when both floats are raised.

13. In a double flushing cistern, two water compartments, means for discharging the compartments separately at will, and means for filling the cistern whether one or both compartments be discharged, comprising a float in each compartment, a connecting member between the floats, a single wa ter-inlet valve for the cistern, an operating lever for the inlet valve, and a pivot connection between the said valve lever and the connection between the floats.

1a. In a double flushing cistern, two water compartments, a siphon discharge means in each compartment, a rocker arm common to the two siphon discharge means, and an actuating lever for the rocker arm having a lost motion connection thereto and movable beyond t-he limits of the lost-motion movement to actuate the rocker arm to actively move one siphon means at a time.

15. In a double flushing cistern, two water compartments, siphon tubes individual to the water compartments, a common outflow chamber communicating with both siphon tubes, and an anti-siphoning tube entering said common chamber.

In testimony, that I claim the foregoing as my invention, I have signed my name in presence of two subscribing witnesses.

CHARLES LESLIE NEVVLAND.

Witnesses:

7 J. S. WITHERS,

F. BLAKEY.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of ratents.

Washington, D. S. i 

